This Philips HF-R TD 2 14-35 TL5 dimmable ballast runs between : 2 x 14w - 35w T5 fluorescent tubes.

This ballast's lamp power can be regulated from 1% to 100%, digital control input according to the industry standard DALI (digital addressable lighting interface) combined with the touch and dim pushbutton protocol, automatic stop start, automatic restart after lamp replacement, up to 75% reduction in energy consumption and quick programme flicker free start.

The Philips HD-f ballasts are commonly used in offices. These units are for use with installations with emergency back up.
 

Operating and electrical

Input Voltage	220 to 240 V
Input Frequency	50 to 60 Hz
Operating Frequency (Max)	100 kHz
Operating Frequency (Min)	46 kHz
Ignition Method	Programmed Start
Crestfactor (Max)	1.7
Power Factor 100% Load (Nom)	0.98
Ignition Time (Max)	0.2 s
Mains Voltage Performance (AC)	-8%-+6%